Anandakanda 2.1.260

2.1.260

saurāṣṭradeśakhanijaḥ sa hi kampillako mataḥ /
pittavraṇādhmānavibandhanaghnaḥ śleṣmodarārtikrimigulmahārī /
mūlāmaśūlajvaraśophahārī kaṃpillako ricya malāpahārī //

Originating from mines in the region of Saurāṣṭra, it is indeed considered kampillaka.
It destroys pitta humor, ulcers, flatulence, and constipation; it cures disorders of phlegm humor and abdomen, worms, and abdominal tumors;
Curing hemorrhoids, undigested matter, colic, fever, and edema, kampillaka purges and eliminates waste.